I work for authenticity too, congruence of my immediate, genuine feelings and the way I express them, in as many situations as possible. But I think I have a little different outlook about long term personality than people are expressing on this thread. I don't think of lifelong personality as a fixed thing that has one authentic existence. I think it's something that we're free to create, at least to some extent, not that it's easy to shape it. But I work for that feeling of having the freedom to be what I want too (as well as working to be authentic).